<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.w3.org/1999/xhtml">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<div>
    <ul>
        <li>username:[[${username}]]</li>
        <li>state:[[${state}]]</li>
    </ul>
    <ul>
        <li th:each="cty:${citys}">[[${cty}]]</li>
    </ul>
    <form>
    <select name="city">
        <option th:each="cty:${citys}">[[${cty}]]</option>
    </select>
    </form>
</div>
</body>
</html>